Grounding - Graco E-Flo DC 333389E Instructions - Parts Manual

Installation

Grounding

Grounding Grounding
This equipment must be grounded to reduce the
risk of static sparking and electric shock. Electric
or static sparking can cause fumes to ignite or
explode. Improper grounding can cause electric
shock. Grounding provides an escape wire for the
electric current.
1. Connect the supply ground wire in the
electrical compartment as shown in
Connect the Supply Wiring, page
2. Connect a ground wire as shown in Fig. 5.
Loosen the ground screw and attach a ground
wire (Y, Graco part 222011, not supplied).
Tighten the ground screw securely. Connect
the other end of the ground wire to a true earth
ground.
Figure 5 Ground Wire
NOTE: Advanced models require installation NOTE: NOTE:
of a control module. All pumps connected to a
common control module must be grounded to
the same ground point. Different ground points
(unequal potential) may cause current to flow
through component cables, causing incorrect
signals.
Pump Pump Pump
ESx4xx
ESx8xx
ESxDxx
ESxHxx
Fluid hoses: hoses: Use only electrically conductive
3. Fluid Fluid hoses:
hoses with a maximum of 500 ft. (150 m)
combined hose length to ensure grounding
continuity. Check the electrical resistance of
hoses. If total resistance to ground exceeds 25
megohms, replace hose immediately
4. Fluid Fluid supply Fluid supply supply container: container: container: Follow your local code.
5. Solvent Solvent pails Solvent pails used pails used when used
local code. Use only conductive metal pails,
placed on a grounded surface. Do not place
the pail on a non-conductive surface, such as
paper or cardboard, which interrupts grounding
continuity.
12
11.
Control Module Module
Control Control Module
24P822
24X599
17V232
17V233
when flushing: when flushing: Follow your flushing:
6. To To maintain To maintain grounding maintain grounding continuity grounding
or or or relieving relieving pressure: relieving pressure: Hold metal part of the spray pressure:
gun or valve firmly to the side of a grounded
metal pail, then trigger the gun or open the valve.
continuity when continuity when flushing when flushing flushing
333389E